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Finding the Fourth Proportional to 27,977, 38,608.26 and 15,402.92

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Solution

The fourth proportional to 27,977, 38,608.26 and 15,402.92 is: 21,256.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,977 : 38,608.26 = 15,402.92 : x
  2. Step 2: Convert to fraction form
    27,977/38,608.26 = 15,402.92/x
  3. Step 3: Cross multiply
    27,977x = 38,608.26 × 15,402.92
  4. Step 4: Simplify right side
    27,977x = 594,679,940.12
  5. Step 5: Solve for x
    x = 594,679,940.12/27,977
  6. Step 6: Final answer
    x = 21,256.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.